Compilare: user.cpp: In function ‘void Add(int, int)’: user.cpp:14:27: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) x^(x - 1)&x ^ user.cpp:34:33: note: in expansion of macro ‘zeros’ for (int i = poz; i <= n; i += zeros(i)) ^ user.cpp: In function ‘int Sum(int)’: user.cpp:14:27: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) x^(x - 1)&x ^ user.cpp:41:33: note: in expansion of macro ‘zeros’ for (int i = poz; i >= 1; i -= zeros(i)) ^ user.cpp: In function ‘int main()’: user.cpp:48:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("calafat.in", "r", stdin); ^ user.cpp:50:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:52:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ user.cpp:56:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &Q[i].lf, &Q[i].rt); ^